Conclusions
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1.
The displacement of Cu(II) ions from a Type A zeolite by solutions of different composition has been studied.
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2.
The greatest displacement effect is shown by the ammonium salts of organic acids which form stable complexes with Cu(II).
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3.
Salts of alkali metals with simple inorganic anions are of low efficiency in regeneration.
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4.
To increase the percentage displacement of Cu(II) it is moat advisable to carry out the regeneration of a Type A zeolite immediately after completing the sorption stage.
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Literature cited
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G. Eisenman, Biophys. J.,2, 259 (1962).
D. W. Breck, Zeolite Molecular Sieves-Structure, Chemistry, and Use, Wiley-Interscience, New York (1974).
V. A. Nicashina, L. I. Zvereva, K. M. Olshanova and M. A. Potapova, J. Chromatogr.,120, 155 (1976).
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp.1218–1221, June, 1982.
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Mironova, L.I., Yurkova, L.S. & Nikashina, V.A. Regeneration of type a zeolite. Russ Chem Bull 31, 1081–1084 (1982). https://doi.org/10.1007/BF00955951
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DOI: https://doi.org/10.1007/BF00955951